Rail-anchor.



T. B. BOWMAN.

Rm ANCHOR. APPLICATION FILED JAN. H. 1915.

Patented Apr. 23,l9l&

" and securely apphed to a rail,

UNITED STATES PATENT iorrioa.

THOMAS TB. BOWMAN, OF CHICAGO, ILLINOIS. ASSIGNOR. BY MESNE ASSIGNMENTS. T ANCHOR COMPANY, A CORPORATION OF ILLINOIS.

RAIL-ANCHOR.

T0 nil whom it may concern:

die it known that I, THOMAS B. BOWMAN, a citizen of the United States, residing at Chicago, in the. county of Cook and State 16f Illinois. have invented new anduseful 'linprovcmenh in llnilnknchors, of 'which the following is a full. clear, concise, and exact description. reference being'had to the accompanying drawing. forming; a part in of this specification.

This invention relates to im mivetnents in rail anchors.

llailwav rniland the like have a teudenc v to creep along the road-lied in the direction of the tratlir thcreover. .\'arionistructures. known as rail anchors. have been devised for preventing this creepage. The problem has been to provide a simple. et'tici'ent anchor which may be readily manufactured which 20 has a minimum weight, which may be easily and which L will poaitivel}- grip the rail and prevent it from creeping. To this end the present in vention hm been devised. One of the objects of the invention is to provide an eflieient anchor which will have a minimum weight Another ohject to provide. an iuiin'oved anchor which will positively grip the rail so when it tends to creep.

Anotlwr object to provide an ancl'sor in which the means for attaching it to a rail is relieved of the creep-age stress.

Another object is to provide an improved anchor which will prevent creepage of a rail without causing injury A further object is to providean anchor which may be easily and eheaplv manhfactored. 40 A further object in to provide an improved anchor which may be readily applied to a rail. 1

Other objects and advantages of the invention will hereinafter appear.

1n the accompanying drawings Figure. 1 is a perspective view howing the inside of the anchon Fig. '2 is a side elevation of the, anchor applied to a rail. Fig. 3 is an end view and partial crossto the roadbed. it

Specification of Letters lawnt. Patented pr. $3, 1918- Serial No. 1,640

section showing the andhor attached to a rail. Fig. 4: is a side cross-section showing the the rail. 7

The anchor elevation and partial anchor gripping i I I so which is shown to illustrate the invention has upper and lower jtlwl and 2. a leg rl. a foot TL, and an arm 5,41 l of which are preferably integral and oastfrom malleahle iron or steel.

The anchor is adapted to he applied to the side of a rail with the jaws embracing the rail base as shown in Figs. 3 amid, the upper jaw 1 being above and the lower aw 2 )elow the base.

The leg 3 extends downwardly from the jaws and is provided with a foot inear its lower end adapted to engage a' tie to act as a fulcrum on which the anchor may tilt. The engaging surface of the foot 4 is forward of the upper end of the leg so that the upper end is free to move after movement or the lower end is prevented by engagement of the foot l with the tie. The anchor is accordingly tree to tilt with the 5 foot 4 acting aa a fulcrum.

The jaw l and z and the leg '3 form the main body of the anchor and are adapted to take the stress of creepagc. A reinforcing weh 10 preferably extends between the lower jaw 2 and the leg 3. The forward end of the upper jaw and the rear end of the lower jaw may be enlarged so as to give them increased strength w ere the in'ipinge upon the.- rail base. 35

The arm 5 which extends upwardly from the jaws is adapted to be attached to the rail'to carry the upper end pfl theanchor forward to tilt it. Any suitabie'means 'niay be used for attaching the arid tot all.- go An integral pin 3 is shown. 'llie bifurea tdr i end. 7 of the pin ma be spread or fa cotter pin 8 may be inserted through the opening 9 to hold the pin in position/The pin not only serves to carr the upper end of the anchor forward with the rail but it also acts as a means for attaching the anchor to the rail.

\Vhen the rail tends to creep in the direction indicated by the arrow in Fig. 2,

Cat

me when also reduces the cost of the arm 5 causes the anchor to be carried along with the rail until the foot 4 ot lcg .l engages a tie. Upon further tendency of the rail to creep the unpcr end of the anchor is moved forward all the lower end is retarded. The anchor isaccordingly tilted on the fulcrum formed by foot l so that the forward end of jaw l impinges upon the top of the rail base and the rear end of jaw impinges upon the bottom of the rail base. The base is thus firmly gripped between the jaws of the anchor. The more the rail tends to creep the tighter the jaws grip the base.

As soon as the jaws have gripped the rail base the attaching means 6 is relieved of the stress of creepage whi *h is thereafter borne by the rail base, the it'l\\' and the leg of the anchor. The at'tachin; means-v 6 may there fore be comparatively small since it l sub jectcd to very little strain. The reduction in size of the attaching means causes a corresponding reduction Ill the labor and cost of applying the anchor to a rail since the i/r of the hole which must be drilled in the rail is reduced.

It will thus be seen that a simple and cliicient rail anchor has been provided which will positively gri the rail when the rail tends'f'to creep :l he means for attaching the anchor to theifail is relieved of the stress and strain of creepage and accordingly may be made of reduced. size. This not only makes the anchor itself less expensive but it applying the anchor at small hole need be drilled to receive the attaching means. This hole may be quickly and easily forced through the rail. the anchor slipped over the side of the rail base and the attaching ltitulls applied after which the anchor needsno further attention. It will not fall oil by reason of the jar of traffic or a reverse crccpage. The'attachingmeans may be slightly loose and still the anchor will operate since it: is only necessary that the attaching means hold the anchor in position on the rail so as to carry it forward to positively tilt it to cause the jaws to grip the rail base. Accordingly, a continuous inspection of the anchors after they are in position for the purpose of determining whether they are tightly in engagement with the rail is not required. Tho

to a rail since only anchor is fixed in one position relative to the rail so that. there can he no creepage by reason of the anchor slipping or sliding along the rail while not in actual gripping engagement therewith. The fact that the attaching means carries the upper end of the anchor forward with the rail each time the rail starts to creep insures that, the anchor is tilted to rip the rail. The action of the anchor is terefore. positive. At' the same tune he rail is free to move relative to the the direction of tratnc 1s reversed.

This prevents roadbed.

In addition to the abore-mentioned advantages. the anchor is simple and may therefore be easily llltlllllftlttlll'ttl. It; may be made in one integral cast ing. as shown, or, if desired. the attaching means may be made eparately. The weight of the anchor is reduced to .1 minimum which'is an important factor inasmuch as anchors are, usually sold by the pound or humlredweight. The anchor therefore combines the advantageous features of simplicity, low ost, inexpensive application and positive etliciont operation.

It is manifest that various anchors may be devised which will embody the invention set forth herein and that various modifications may be made in the structure which has been m,rticularl y set forth without in any way departing from the invention as delinrd hr the claims ap 'iended hereto.

What I claim as new and desire tosccuro by United State-- Letters Patent is:

l. A rail anchor compri.--;inga pair of jaws adapted to grip the base of a rail and hav ing their points of impingement with opposite. sides of the rail base separated a relatively great distance in the. direction of the length of the rail. a depending leg for engaging a cross-tie to tilt the the tie being loosened in the aws to cause them to increasingly grip the rail as the rail tends to creep. and means projecting through the web of the rail to hold the anchor against displacement and insure positive tilting of the jaws.

:2. A rail anchor comprising a pair of jaws adapted to grip between them the base flange oi a rail. a depending leg to cause the jaws to im-rcasingly grip the base when the leg ill1lll a tic as the rail tends to creep, a strengthening web extending between said leg and jaws. and a pin cooperating with the web of the rail and about which the anchor can tilt to hold the anchor against displacement and to insure positive. tilting when the leg abuts a tie.

3. A rail anchor comprising a pair of jawsadapted to engage and increasingly grip the base ofa rail when tilted. a strengthening web for each jaw. a depending legfor abutting a tie to tilt the jaws as the rail tends to creep. a relatively thin strengthening web extending between the jaws and leg to prevent bendin of the leg. and a pin extending through tie. web of the rail to hold the anchor in place and positively insure the, tilting of the jaws.

4. A rail anchorcomprising a pair of jaws engaging the bottom and top surfaces of the ,rail base, a depending leg-"for tilting the jaws to cause, them to increasinglygrip the rail when the leg abuts a tie as the rail tends to creep, a member extending upwardly from the jaws adjacent the web ofthe rail, a pin extending through saidmembel' and the rail 130.

webfto'p'rovide a. pivot about which the jaws I scribed my" .in the presence 6f two wltdell: tilthan? to iils ure the ,tiltigg of the BliWS nesses. wentee autsatiean a;tria.ngi1ar stren' henin g web' extending from the cen THOMAS BOWMAN 5' tel-4o the leg to the jaws toprevent bending Witnesses:

of the leg. (LP. Win-mum,

witness whereof, I have hereunto sub- 7 ALICE R G N, 

